How to display google form for muting native ad?

I followed this guide https://developers.google.com/admob/android/native/mute-this-ad

I used this code from github googlesamples too mute a Native Ad.

https://github.com/googlesamples/android-ads/blob/master/advanced/APIDemo/app/src/main/java/com/google/android/gms/example/apidemo/AdMobCustomMuteThisAdFragment.java

But how can i get the same dialog as in the first image? Now i'm getting a simple dialog with the reasons.

This is what i want

This is what i have now after following the guide and using code from googlesamples

from How to display google form for muting native ad?